blob: 8ff99ab5cf13e6ce072e6756269e337817666c39 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
|
#!/usr/bin/env bash
# Copyright (c) 2016 Open Platform for NFV Project, Inc. and its contributors
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# Small script for calculation of cores not suitable for deployment
# of VM's and adaptation of nova.conf accordingly
# nova.conf path should come as first param
# this should be executed when nova is enabled and already configured
source /etc/default/ovs-dpdk
OVS_CORE_MASK=$(echo $OVS_CORE_MASK | sed 's/^0x//')
OVS_PMD_CORE_MASK=$(echo $OVS_PMD_CORE_MASK | sed 's/^0x//')
BAD_CORES=$((`echo $((16#${OVS_CORE_MASK}))` | `echo $((16#${OVS_PMD_CORE_MASK}))`))
TOTAL_CORES=`nproc`
vcpu_pin_set=""
for cpu in $(seq 0 `expr $TOTAL_CORES - 1`);do
tmp=`echo 2^$cpu | bc`
if [ $(($tmp & $BAD_CORES)) -eq 0 ]; then
vcpu_pin_set+=$cpu","
fi
done
vcpu_pin_set=${vcpu_pin_set::-1}
crudini --set $1 DEFAULT vcpu_pin_set $vcpu_pin_set
|
